Machine for moistening yarn



June 11, 1929. PFERDMENGES 1,717,249

- MACHINE FOR =MOISTENING YARN Filed Dec. 25, 1927 Patented June.11, 19 29.

NITED STATES PATENT OFFICE.

FOB HQIS'IEHING YARLL Application filed .Ibecember 23,1927, Serial No.,242,248,,and in Germany December 30, 1926.

.which the yarn is carried past the moistening apparatus on belt conveyors, the moisture being supplied by rotating rollers to centrlfugal brushes, which spray it on to the yarn.

- Thisinvention solves the problem of ena-- bling the quantity of moisture to be regulated, in such a manner that the weight of moisture sprayed works out at a definite percentage, known to be advantageous, of the weight of the yarn. The invention is essentially characterized by the fact that the ratio between the velocity with which the material is conveyed and the speed of revolution of the roll- I ers that supply the moisture to the centrifugal brushes is made capable of'being regu-.

lated in a special way.

The invention is further characterized by the fact that an adjustable bar is provided with marks which denote the nature of the spun material, the belt driving the moistening apparatus being adjustable to these marks;

While the marks on the adjusting rail have reference to the nature and constitution of the spun materials to be moistened, it is furthermore requisite to eflect a-correction ac? cording to the condition of the atmosphere in the work room, which is known to be subject to great variations, this correction working out at the same percentage for all spun materials. For this purpose the driving pulleys for the moistening apparatus are of such a curved form thata displacement of the adjusting bar ensures the same percentage increase or decrease of moistening for all'spun materials. Y I I The adjusting of the bar bearing the marks may be eflected by means of a spindle provided with a toothed wheel which meshes with a second toothed wheel. The shaft of this latter toothed wheel stands at the free end in front of a scale, according to which, by using a device indicating the condition of the air in the work room, or a corresponding table, the adjustmentis efiected.

The invention is diagrammatically illustrated by wayof example in the accompanying drawings, wherein Figure 1 is a view of a belt conveyor, with moistening apparatus;

Figure 2 is a view of the drive of the roller servingfor supplying the moisture; and

Figure 3 is a view of the change-speed gear,

with'mark adjustment.

- which are stationary.

v the belt on a belt conveyor 0, Figures 1 and 2, the

spun material .9 is carriedthrough underneath roller d strips 011' the moisture carried away upon the immersion roller 0, atomizes it, and throws it on to the material 8.

The immersion roller 0 receives its drive by means of a double-cone belt drive Ira-ls, with which to every position of the belt fthere corresponds a definite speed of revolution of the roller 0, and consequently a definite quantity of moisture delivered per unit of time. A scale 6 for the beltfacilitates the adjustment. Instead of the 1 belt drive k, is any other change-speed gear may of course be employed,

such as a friction-disc or toothed-wheel gear. According to Figure 3, the bar Z, which is connected by bolts 2' with a bar p, bears marks m, m which denote-the nature and constitu- I tion of the spun material. In the selected example a driving beltq', which is guided by a fork n in a slot 0. in the bar p, and which runs over curved driving pulleys r, r, is adjusted" to the mark m. The pulleys 1'r drive the belt. a, as will be understood. Bye pans of a positioningwheel g on a spindle g which is supported in bearings 25, t and guided in a nut u, the bar Z admits of being shifted relatively to the-remainin machine parts '0, o, pon the spindle g is mounted fast a toothed wheel w, which meshes with a toothed wheeler. The. shaft of the wheel m carries at the free end a pointer y, standing in front of a scale, which may be fitted to the wheel as.

So long as spun material of the same kind and quality is to betreated the belt fork n may be fixed inthe slot 0 in the bar 79, so that merely by adjusting the wheel in accordance with the condition of the air in the work room 9 is guided into its appropriate position.

What I claim is v 1. An adjusting device for yarn-moistening machines including a centrifugal brush for scattering moisture over the yarn, a belt conveyor for carrying the yarn past said centrifugal brush, an immersion roller adapted to supply moisture to said centrifugal brush, means for drivingsaid belt conveyor, means for driving the immersion roller,;-a change speed gear for varying the ratiobetween the ymarks denotingthe nature of the yarn, a

. driving belt, and a belt fork, sli'dable in the slot in the positioning bar, for shifting said belt from one mark to another.

2. An adjustin device for yarn-moistening machines inc uding a centrifugal brush for scattering moisture over thelyarn, a belt conveyor for carrying the yarn past said centrifugal brush, an immersion roller adapted to supply moisture to said centrifugal brush, means for driving said belt conveyor, means for driving the lmmersion roller, a change speed gear for varying the ratio between the speed of the immersion roller and the speed of the belt conveyor, said change speed gear including a slotted positionin bar bearing marks denoting the nature of the yarn, a driving belt, a belt fork, sl idable in the slot '-in the positioning bar, for shifting said belt from one mark to another, a spindle adapted to displace the positioning bar longitudinally, a toothed wheel mounted on said spindle,

a second toothed wheel meshingwith said toothed. Wheel, a scale applied to said second toothed wheel, a shaft on which said second toothed wheel is mounted, and a pointer at the free end of said shaft, said pointer standing in front of said scale.

.3. An adjusting device for yarn-moisten: ingmaehines including a centrifugal brush for scattering moisture over the yarn, abelt conyeyorrfor carrying the yarn past said centrifugal brush, an immersion roller adapted to supply moisture to said centrifugal brush, means for driving said belt conveyor, means for driving the immersion roller, a

change speed gear for varying the ratio between the speed of the immersion roller and the speed of the belt conveyor, said change speed gear including a slotted positioning bar bearing marks denoting-the nature of the yarn, a pair of driving pulleys having curved surfaces, a driving belt passing'round said driving pulleys, and a belt fork, slidable in the slot in the positioning bar, for shifting said belt from one mark to another, the curvature of the surfaces of the drving pulleys being such that a displacement of the posi for driving the immersion roller, achange 'speed gear for varying the ratio between the speed of the immersion roller and the speed of the belt conveyor, said change speed gear including a slotted positioning bar bearing marks denoting the nature of the yarn a pair of driving pulleys ha ing curved surfaces, a driving belt passing round said driving pulleys, a belt fork, slidable in'the slot in the positioning bar, for shifting said belt from one mark to another, the curvature of the surfaces of the driving pulleys being such that a displacement of the positioning bar ensures the same percentage increases and decreases in moistening for all the spun materials corresponding to'the various marks on the pos tlonlng bar, a spindle adapted to (118- place the positioning bar 10 gitudinally, a-

toothed wheel mounted onsaid spindle, a sec ond toothed wheel meshing with said toothed wheel is mounted,and a pointer at the free end of said shaft, said pointer standing in front of said scale. g

In testimony whereof I have signed my name to this specification.

HEINRICH PFERDMENGES.

means for driving said belt conveyor, means Wheel, a scale appliedto said second toothed wheel, a shaft on which sa'idsecond toothed 

